It does feel very in character for Mulder, doesn't it? I think Buckingham really gets Mulder. I'm less convinced by her Scully, but then we only see her through Mulder's eyes in this, and he is clearly an unreliable narrator.

... because that's exactly what I wanted in seasons 8/9 :(

I wasn't happy with the direction the show went in during the last two seasons. They had a chance to make it right with the second movie and completely blew it. The writers never give us Mulder and Scully as true partners again. The shippers get their wish; the series goes down the drain.

My only consolation is that bad canon makes for good fanfiction.